Gpsp help

Hey everyone my first post here so yeah; I have the unofficial gpsp kai version acquired from dl.qj.net and was wondering if this is the most stable version I could be getting because I put a pokemon emerald rom (U) on it and for example I got about ten hours into the game and I turned it back on and it rolled back to five hours and nineteen minutes.

and I was wondering if this is the emulator or rom problem because I have tried different roms but I don't know what seems to be the problem.
If anyone had the same problem and has a fix the help would be GREATLY appreciated.

Thanks



Derek